Jail-door-operatietg mechanism



Nov. 8, 1927'.

M. J. TRACY JAIL DOOR OPERATING MECHANISM Filed neo. 29 192e 2 Sheets-Sheet l M-. www? Nov. 8, 1927.

M. J. TRACY JIL DOOR OPERATING MECHANISM Filed Deo, 29. 1926 2 Sheets-Sheet 2 Patented Nov. i927.

narran MCHAEL J. TRACY, F ST. LUS, lVISSDlJ'R, ASS.

A .Tarn-rioonoi-naaV Application filed December 29, 1325.

My invention has relation to improvements in jail door operating mechanism and consists in the novel features oit construction more fully set forth in the speciiication and pointed out in the claims.

The invention is more particularly directed to mechanism for operating` a door or doors disposed in a plane at rigl'it angles to the plane oitx movement ot the control. levers, Which levers are adapted to operate other mechanism' ot which the present invention forms no part. Thus, the principal. object ot the invention is to translate the direction of the original motion to a direction at right angles thereto and to provide mechanism 'for accomplishing this ohiectwvhich will he comparatively simple, positive in its action, and which may he actuated with a minimum of effort. A further ohiect is to provide a transmission between the parts that are disposed Vat right angles to each other, that shall loe compact and that ma;T be entirely encased so as not toperniit of tampering by the inmates ot the i ail or anyone unauthorized. Further and other advantages Will he better apparent `trom a detailed description ot the invention in connection with the accompanying drawings, in which:

Figure 1 is a side elevation (with parts in section) ot the top of the jail door and the mechanism tor operating said door, the door being shown in closed position; Figure 2 is a View similar to Figure 1, the door, ioW- ever, being shown open; Figure 3 is a hori- Zontal, longitudinal section through the casing that houses the door operating mechanism, said section, being taken on a planeV indicated hy the line SH3 in Figure 1, the operating mechanism being shown 1n plan;

Y Figure 4. is a side elevation of the levers and bars connected thereto for transmitting the motion to the door, the housing being shown in section; Figure ,5 is a vertical cross section taken on the line 5 5 of Figure 2; Figure G is a perspective view ot the plate for connecting the travel har to the link transmission; and Figure?" is an enlarged sectional detail through one of the links.

`Referring to the drawings, (Figures 1 and 5), l) represents a jail door movable in a plane at right angles to the plane oi movement ot the primary door operating mechanism comprising an indexing lever 1 con- MECHAG'SIVI.

Serial No. 157,818.

nected to an index har 2, and an operating' lever 3 connected to a main travel har 4:.

The door is suspended lov rollers 5, 5 adapted to travel on a track 6 secured to a ,partition plee 7 above partition 8 and an extension or toggle lever 9 is pivotallv connected to a lug` 10 projecting from the vcenter oit' the top horizontal door liar 11, the upper end ot extension lever 9 being pivotallv Aconnected to bracket 12 secured to plate 7 as shown in Fi ures 1 and 2). The door D is prevui d with a keeper 13 adapted to enter a slot i4 in the inner 'face of the hollow door iamh said keeper being engaged bv the upper edge ot an opening 16 in a ,locking or drop har 17, said har 17 having` an angle plate 18 secured to `its upper extremity. L A trip lever 19 is pivotallg7 mounted on 'a pin 2O at about its center, said lever 19 carryingr a roller 21'on its outer end. rlilie' roller 2li is operable in a slot 22 in plate 2B secured to the index har 2. From the 'foregoing it Will he apparent that if the indexrleve'r l and indenhar 2 are `moved to the appropriate position, the plate 23v carried hv the index har 2 Will he moved so that the roller 21 will he forced into the lower part 22v ot slot 22, thereh)T rocking the lever 19 and raising the drop har 1? so as to release rit from the door keeper 13 and unlocking the door l). The rocking of the lever will, also raise the angle bracket 1S which in turn Will litt the tree end of a special jump bar 2e which traverses a slot 25 in said angle bracket. t ivill loe observed that the jump har 2a is provided. With a lug 211 extending laterallv :trom its upper edge, said lug` being adapted to enter .a notch 26 in the bottom edge ot a special travel bar 2?, said bar being supported at its tree end betr/veen rollers 28, 28 as shown in Figures 1 and 2). rlhus When the door D is to he opened, theindex lever 2 is moved to its proper position whereupon the .door D is unlocked and at the same time the jump bar 24 is coupled to the travel har 27.

The door is then indexed, or selected,.and, .if now the operating lever 3 is raised, the door will he opened .by means ot the right angle .door operating mechanism which includes the specialtravel bar 27, and a link transmission T connectingthe special travel bar to .the main travel har 4.

The link transmission T comprises a plu- 'Wardly through a slot Lil lessees rality ot lil' 3l connected by spindles 32 also be moved through the a2, said `etween linlis 33, 33, said splindles having rollers 34;, ll mounted on their outer ends. The rollers lll are each provided fith bosses, 35, 35 in which are depressions 8S to receive the head 32 ol spindle 32 and rctaining Washer 37 respectively, the latter being held in place by the upset extremity 38 otl the spindle. The terminal linlis 35% are connected respectively to plates 39, all), Awl'iich plates have laterally extending arms S andflO perforated to receive spinn dles $32, illate il?) entends downivndly through a fl" i ill in the bottoni ot easing which houses and conl'ines'the transmis sion rif and is riveted to the main travel bar rlhere are tivo openings lill, i3 in the plate 39 intoivliich are inserted spindles elli, carryine suitable rollers do, lo rotatable in a plane transverse to the rotation plane oil" rollers 3l. Plate fl() extends donar in the bottom i) of the casing l2 and is pro fi `ed with spaced openings a6, lo onto which. are inserted spindles li', ed' carrying rollers Llll, el@ disposed in the same plane as rollers 5, a5.

Thus, the main travelbar actuales the special travel bar 2"? tlnough thetransmission T, and a movement of bar is effective on the jump bar ivhen it has been raised to engage the notch 26 in said travel bar 27. As the travel bar is moved to a position either to open or close the door l), it will oscillate the extension lever 9, the latter swinging from one side to the other and carrying with it in its movement the door D. llhen the door D is opened, the movement of the jump bar 2a is :multiplied by the extension lever 9 so that tor a given movement olf the bar 2, the door l) will move t'vvice the distance. is readily seen that the advantage et this arrano'ement ol lever is that the tin-ow of the operating lever may be comparatively sli rt. ln order to have the moving parte operate easily, they are provided with suitable roller bearings shown in the drawings, but not specifically described since the use oit antilrictionbearings is an old expedient and not herein claimed.

In the operation o'lthe invention, the lever l is moved to actuate the indes; bar 2,

thus moving the plate 23 in the direction ot the arrow (Figure VLl) until' the roller 2ll has been l'orced into the bottom 22 oi the slot 22, rocking the lever l) to the position shown in Figure 2, thereby raising the plate 18 to unlatch the door l) and at the saine litt the jump bar 24;. When the jump bar is raised, its lug 2l enters the notch 28 in the travel bar 27, thus coupling fi ic travel bar and jump bar together, li'l the lever 3 is noW actuated, the mai-n travel bar Ll will bermoved in the direction of the arrow @ligure l), and the transmission 'll will n cts-ing transmis-fion through its connection -with the special travel bar 27 actuating said bar 27 in the direction ot the arrow igure Since the special travel bar is new coupled to the jump bar 2l, as above set forth, the jump bar Willbe caused to travel. Afrom the position shown in lligure l to that shown in `Figure 2 and the door will be opened owing to the connection between the jump bar amlflever S). is the t sion is moved through the ci. rollers Llil will Vroll along the casing l2 with a niimimum ol tric-tion, an=1l the rollers l5 will roll along the bottom Z) ot said easing. rl`he lovfer krollers ill will slide along the bottom l), but the friction botivcen the rollers and said bottom is reduced toa minimum by virtue el the depression o extending longitudinally ot the bottom E') (Figure 7). virtue of the rollers Sel, rollers 45, and tie reduction of the contact betWe-enlower rollers and the bottom of the casing 42, the 'friction between the transmission and its casing` is reduced to a minimum so that the door l) may be opened with comparatively little eilort.

lillhile 'l show the transmission rl` in conibination with a jail door operating me* a. ism, it is apparent that this transmis. on may be eniployed lor other uses and l do not Wish to'be miderstood'as restricting myself to the specilic application herein described.

llaving described my invention, l claim:

l. ln a jail door operating mechffuiiszr, th coml'iination ol an operatingl ver, a travel bar connected thereto, a special travel bar disposed at ight angles to the said travel bar, tleiil'le means yfor translating the mo tion oll the tavcl bar to the special travel bar, and means 'for coupling the door to the special travel bar.

2. ln a jail vdoor ope-ating `mechanism comprising a travel and an operating lever tl'ierel'or, special travel bar dispose-d at right anglesto the travel bar, flexible means for imparting the motion of the main vtravel bar to the special 'travel bar, means lor loeking'the door in closed position, and means il'or imlocliing said door and simultaneously therewith coupling the door to the special travel bar.

3.ln a jail door operating mechanism comprising a travel'bar and an operating lever therefor, a special travel bar disoosed at right angles to the travel bar, ilegible vmeans t'or imparting' the motion ot' the main travel bar to the special travel bar, means Yfor coupling the special travel bar to the door, and an indexing lever adapted to actuate the 4coupling means.

' /-l. ln a jail door operating mechanism, the combination ot an operating lever, a travel bar connected thereto, a special travel bar Lei/raalte disposed at right angles to the said travel bar, a plurality of links connecting the travel bar and the special travel bar, whereby motion ol the 'former is imparted to the latter, and means for confining the links to their path of travel.

5. In a jail door operating mechanism, the combination of an operating lever, a travel bar connected thereto, a special travel bar disposed at right angles to the said travel bar, a plurality of links connecting the travel bar and the special travel bar, whereby motion of the :former is imparted to the latter, and a suitable housing for said links.

G. In a jail door operating mechanism, the combination of an operating lever, a travel bar connected thereto, a special travel bar disposed at right angles to the said travel bar, a flexible connection composed of a series of links between the travel bar and the special travel bar, said links having rollers at their pivotal points.

Y 7. In a jail door operating mechanism, the combination of an operating` lever, a travel bar connected thereto, a special travel bar disposed at right angles tothe said travel bar, a flexible connection composed of a series of links between the travel bar and the special travel bar, a housing for confining the links to their path of travel, and rollers at the pivotal points of the links adapted to give said flexible connection rollingsupport in the housing.

8. In a jail door operating mechanism, the combination of an operating lever, a travel bar connected thereto, a special travel bar disposed at right angles 'to the said travel bar, a plurality of links connecting the travel bar and the special travel bar, whereby motion of the former is imparted to the latter, and a suitable guideway for said links.

In testimony whereof I hereunto afiX my signature.

MICHAEL J. TRACY. 

